Bug 2445291 (CVE-2026-29063) - CVE-2026-29063 immutable-js: Immutable.js: Arbitrary code execution via Prototype Pollution
Summary: CVE-2026-29063 immutable-js: Immutable.js: Arbitrary code execution via Proto...
Keywords:
Status: NEW
Alias: CVE-2026-29063
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
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Depends On: 2450799 2450796 2450797 2450798 2450800 2450801
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-06 19:01 UTC by OSIDB Bzimport
Modified: 2026-06-29 18:26 UTC (History)
89 users (show)

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Description OSIDB Bzimport 2026-03-06 19:01:21 UTC 
Immutable.js provides many Persistent Immutable data structures. Prior to versions 3.8.3, 4.3.7, and 5.1.5, Prototype Pollution is possible in immutable via the mergeDeep(), mergeDeepWith(), merge(), Map.toJS(), and Map.toObject() APIs. This issue has been patched in versions 3.8.3, 4.3.7, and 5.1.5.
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